function getLoginCornerPage() {
	xmlhttp = createXMLHttp();
	if ( xmlhttp ) {
		DD = new Date();
		ky = "" + DD.getSeconds() + DD.getMinutes() + DD.getHours() + DD.getDate();
		xmlhttp.onreadystatechange = setLoginCornerData;
		xmlhttp.open('GET', 'loginchecker.php?tm=' + ky);
		xmlhttp.send(null);
	}
}

function setLoginCornerData() {
	if ( xmlhttp.readyState == 4 && xmlhttp.status == 200 ) {
		document.getElementById('loginCorner').innerHTML = xmlhttp.responseText;
	}
}
function createXMLHttp() {
	try {
		return new XMLHttpRequest();
	} catch(e) {
		try {
			return new ActiveXObject('Microsoft.XMLHTTP');
		} catch(e) {
			return null;
		}
	}
}
function doLogin() {
	idCtl = document.getElementById('login_corner_id');
	pwCtl = document.getElementById('login_corner_pw');
	if ( idCtl && pwCtl ) {
		url = 'loginchecker.php?c=k&i=' + idCtl.value + '&p=' + pwCtl.value;
		xmlhttp = createXMLHttp();
		if ( xmlhttp ) {
			xmlhttp.onreadystatechange = setLoginCornerData;
			xmlhttp.open('GET', url);
			xmlhttp.send(null);
		}
	} else {
		alert('can not get control object');
	}
}